Small farmers operate under some of the most convoluted sets of regulations, penalties and incentives for  land use and pollution control you can imagine, and they work with outfits like university agricultural extension offices to create and implement ingenious land-use and land-protection methods — but when the green-group blowhards — sorry, environmental advocacy groups — decide the line shall be drawn, the stand shall be aggrandized, the relatively easy-to-attack small farmer always takes the first hit